18825379393 has 8 divisors (see below), whose sum is σ = 19762018560. Its totient is φ = 17909325840.

The previous prime is 18825379381. The next prime is 18825379429. The reversal of 18825379393 is 39397352881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18825379393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18825379373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5144530 + ... + 5148187.

It is an arithmetic number, because the mean of its divisors is an integer number (2470252320).

Almost surely, 2^18825379393 is an apocalyptic number.

It is an amenable number.

18825379393 is a deficient number, since it is larger than the sum of its proper divisors (936639167).

18825379393 is a wasteful number, since it uses less digits than its factorization.

18825379393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10292807.

The product of its digits is 9797760, while the sum is 58.

The spelling of 18825379393 in words is "eighteen billion, eight hundred twenty-five million, three hundred seventy-nine thousand, three hundred ninety-three".